Home / 578,573.15-798,413.29-320,439.85

Finding the Fourth Proportional to 578,573.15, 798,413.29 and 320,439.85

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Solution

The fourth proportional to 578,573.15, 798,413.29 and 320,439.85 is: 442,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,573.15 : 798,413.29 = 320,439.85 : x
  2. Step 2: Convert to fraction form
    578,573.15/798,413.29 = 320,439.85/x
  3. Step 3: Cross multiply
    578,573.15x = 798,413.29 × 320,439.85
  4. Step 4: Simplify right side
    578,573.15x = 255,843,432,088.47
  5. Step 5: Solve for x
    x = 255,843,432,088.47/578,573.15
  6. Step 6: Final answer
    x = 442,197.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.